The United Illuminating Company
Summary
The United Illuminating Company is registered in the United States. Its legal form is Stock Corporation (Inc.). According to GLEIF, its ultimate parent is AVANGRID, INC. (United States), which is also its direct parent. That group has 21 subsidiaries with LEIs in 1 country, 21 of them in the United States. The LEI was first issued on 2 Apr 2013 and the record was last updated on 2 Mar 2026; the next renewal is due by 2 Mar 2027. GLEIF's ISIN mapping lists 19 ISINs for this LEI.
Written from GLEIF data using fixed, reviewed sentence templates.
Data-quality notes (AssetCensus analysis)
No data-quality notes for this entity in this data release.
Company details
| Legal form | Stock Corporation (Inc.) |
|---|---|
| Register | · Register website |
| Registration number | 0159106 |
| Registration authority | Secretary of the State's Commercial Recording Division |
| Jurisdiction | United States (US-CT) |
| Registered address | GOODWIN SQUARE, 225 ASYLUM STREET 20TH FLOOR, 06103 HARTFORD, United States |
| Headquarters address | 100 MARSH HILL ROAD, 06477 ORANGE, United States |
| Category | company or other legal entity |
| Status | active |
| Founded (per GLEIF) | 15 Jun 1899 |
| LEI | 549300B4YGCZQQ06TA03 |
| LEI status | active |
| LEI first issued | 2 Apr 2013 |
| LEI record last updated | 2 Mar 2026 |
| Next LEI renewal | 2 Mar 2027 |
| Corroboration of the LEI record | fully corroborated |
Group membership
Relationship to the parent
| Direct parent | Ultimate parent | |
|---|---|---|
| Parent | AVANGRID, INC. | AVANGRID, INC. |
| Accounting period | 1 Jan 2025 to 31 Dec 2025 | 1 Jan 2025 to 31 Dec 2025 |
| Evidence | consolidated accounts | consolidated accounts |
| Corroboration | fully corroborated | fully corroborated |
| Accounting standard | US GAAP | US GAAP |
| Relationship start | 15 Jun 1899 | 15 Jun 1899 |
| Recorded at GLEIF since | 27 Feb 2025 | 27 Feb 2025 |
| Last updated | 2 Mar 2026 | 2 Mar 2026 |
| Record status | current | current |
Other subsidiaries of the same direct parent (7)
- AVANGRID POWER, LLC United States
- CENTRAL MAINE POWER COMPANY United States lapsed
- CONNECTICUT NATURAL GAS CORPORATION United States
- NEW YORK STATE ELECTRIC & GAS CORPORATION United States lapsed
- ROCHESTER GAS AND ELECTRIC CORPORATION United States lapsed
- THE BERKSHIRE GAS COMPANY United States
- The Southern Connecticut Gas Company United States lapsed
ISINs mapped to this LEI (19)
US9027481020 · US91064HAE45 · US91064HAF10 · US91064HAG92 · US91064HAH75 · US91064HAJ32 · US91064HAK05 · US91064HAL87 · US91064HAM60 · US91064HAN44
19 in the GLEIF–ANNA mapping file; first 10 shown. The file covers ISINs issued since the mapping started, not all securities.